CheckedListbox graphical error.  Checks appear on scroll.
CheckedListbox graphical error.  Checks appear on scroll.
CheckedListbox graphical error.  Checks appear on scroll.
CheckedListbox graphical error.  Checks appear on scroll.
CheckedListbox graphical error.  Checks appear on scroll.
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CheckedListbox graphical error.  Checks appear on scroll. CheckedListbox graphical error.  Checks appear on scroll.
CheckedListbox graphical error.  Checks appear on scroll.
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  #1  
Old 09-04-2012, 04:58 PM
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GruffCheckedListbox graphical error.  Checks appear on scroll. Gruff is offline
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Default CheckedListbox graphical error. Checks appear on scroll.


I am seeing a very bad graphics error with the checkedlistbox.
If you check an item near the top of a long list and scroll until the top items are off screen then scroll back up visually most of the checkboxes appear checked. After testing I verified that the items were not actually checked they just appear so.

The same is true for bottom items scrolled offscreen.

Does anyone know of a fix for this?
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  #2  
Old 09-04-2012, 06:14 PM
surfR2911 surfR2911 is offline
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Default Particular to this machine?

A quick search found this off forum thread noting it only happens on some machines.

Have you tried the code on a different computer - also
if running under Windows 7 have you tired running with
"XP compatibility" mode with visual themes and desktop composition
disabled
?
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  #3  
Old 09-04-2012, 06:32 PM
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AtmaWeaponCheckedListbox graphical error.  Checks appear on scroll. AtmaWeapon is offline
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I'd be willing to bet it has more to do with your hardware or drivers than something that can be fixed with the control. It's a disappointing answer though. Maybe you could "page" the data? I've always found that control kind of unwieldly, but there's not much better available to WinForms :/
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Old 09-05-2012, 05:27 PM
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GruffCheckedListbox graphical error.  Checks appear on scroll. Gruff is offline
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Thanks for the response guys,

I think you are right and it must be graphics card or monitor issue.
When I booted up this morning my dev-machine lost the screen information. the res was all wrong for my monitor. Reset the monitor and things straightened out.

As a work around for now I found that setting the checkbox frame to 3D works as it should. Toggle to 2D and blam. Same problem. So long story short I am going to be putting in for a new (And Larger ) Monitor.

The project that is affected is the Web Email Hosted in a Desktop app. The project we discussed earlier James. See Pics.
Attached Images
File Type: png Plain.png (122.7 KB, 6 views)
File Type: png WithCheckedListBox.png (158.0 KB, 5 views)
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  #5  
Old 09-06-2012, 07:47 PM
surfR2911 surfR2911 is offline
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Default Gruff needs a new monitor

My current monitor is 22 x 11 screen size. (22.5 diagonal.

This morning Windows declaired some hardware was not working property and wanted to put me in safe mode. Rebooted and it came up correctly.

So... Hardware. yeah.

What started out as a simple app has been giving me heartburn.
I keep getting issues with web page scaling when driving things from the webbrowser.

Whoa! Sorry James I accidentally pushed Edit instead of reply and destroyed you post.

Last edited by Gruff; 09-08-2012 at 05:12 AM.
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CheckedListbox graphical error.  Checks appear on scroll.
CheckedListbox graphical error.  Checks appear on scroll.
 
CheckedListbox graphical error.  Checks appear on scroll.
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